Question

我正在研究CustomCalendar。我在Recyclerview中删除了一个事件列表。但是我无法删除calendar（Activity）中的数据。我该如何触摸此代码？

@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
    MenuItem add = menu.add(Menu.NONE, 100,1,"수정");
    MenuItem remove = menu.add(Menu.NONE,101,2,"삭제");
    add.setOnMenuItemClickListener(onEditMenu);
    remove.setOnMenuItemClickListener(onEditMenu);
}

private final MenuItem.OnMenuItemClickListener onEditMenu = new MenuItem.OnMenuItemClickListener() {


    @Override
    public boolean onMenuItemClick(MenuItem menuItem) {
        switch (menuItem.getItemId()){

            case 100 :
                Toast.makeText(context,"gd",Toast.LENGTH_LONG).show();
                break;


            case 101 :
                arrayList.remove(position);
                notifyItemRemoved(position);
                notifyItemRangeRemoved(position,arrayList.size());
                notifyItemRangeChanged(position,arrayList.size());
                break;

        }
        return true;
    }
};

Answer 1

从阵列中删除后，您是否尝试使用adapter.notifydatasetchanged（）

如何删除活动中的数据？

1 个答案: